This section describes the "Projection" controls for generation of the model grid.
Three grid projections are supported:
- Mercator
- Lambert Conformal Conic
- Stereographic
Please see Cartopy projection list for more details on these projections.
The gridtools library attempts to conform to Proj terminology for setting projection parameters such as latitude of true scale.
Here is a comparison of Cartopy mapping parameters to parameters for use with Proj and Gridtools:
Cartopy Proj Gridtools central_latitude lat_0 lat_0 central_longitude lon_0 lon_0 standard_parallels lat_1, lat_2 lat_1, lat_2 latitude_true_scale lat_ts lat_ts
Tilt is allowed to be specified for all projections. Conformality of Lambert Conformal Conic grids has been confirmed with usage of a tilt value that is non-zero.
Setting of false_easting or false_northing values is not implemented.
See also: :py~gridtools.gridutils.GridUtils.setGridParameters.